5th millennia BC copper artifacts start to appear in East Asia, such as Jiangzhai and Hongshan culture, but those metal artifacts were not widely used. |
About us|Jobs|Help|Disclaimer|Advertising services|Contact us|Sign in|Website map|Search|
GMT+8, 2015-9-11 22:12 , Processed in 0.231171 second(s), 16 queries .